Startup Idea : Community connect- (no, not another socal network)

Problem- I ve been dwelling in apartments from past 7 years and there is no easy way to connect with my neighbours or people in my apt community unless i run into them.Community connect will solve this problem by providing a simple platform to exchange info, community listing ( buy sell etc), notify about an emergency, ask for help, maintainence and other tips. platform will be higlhly customizable. I am a product geek, product developer and have envisoned this product pretty much to the most detailed level. Anyone who is interested to join are welcome. lets ROCK..!